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hypervisor: provide a generic FpuState structure

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Signed-off-by: Wei Liu <liuwe@microsoft.com>
This commit is contained in:
Wei Liu
2022-07-15 12:35:10 +00:00
committed by Rob Bradford
parent 08135fa085
commit 6a8c0fc887
8 changed files with 105 additions and 19 deletions
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11
hypervisor/src/mshv/mod.rs
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@@ -37,7 +37,7 @@ use std::fs::File;
use std::os::unix::io::AsRawFd;
#[cfg(target_arch = "x86_64")]
use crate::arch::x86::{CpuIdEntry, SpecialRegisters, StandardRegisters};
use crate::arch::x86::{CpuIdEntry, FpuState, SpecialRegisters, StandardRegisters};
const DIRTY_BITMAP_CLEAR_DIRTY: u64 = 0x4;
const DIRTY_BITMAP_SET_DIRTY: u64 = 0x8;
@@ -317,17 +317,20 @@ impl cpu::Vcpu for MshvVcpu {
/// Returns the floating point state (FPU) from the vCPU.
///
fn get_fpu(&self) -> cpu::Result<FpuState> {
self.fd
Ok(self
.fd
.get_fpu()
.map_err(|e| cpu::HypervisorCpuError::GetFloatingPointRegs(e.into()))
.map_err(|e| cpu::HypervisorCpuError::GetFloatingPointRegs(e.into()))?
.into())
}
#[cfg(target_arch = "x86_64")]
///
/// Set the floating point state (FPU) of a vCPU.
///
fn set_fpu(&self, fpu: &FpuState) -> cpu::Result<()> {
let fpu: mshv_bindings::FloatingPointUnit = (*fpu).clone().into();
self.fd
.set_fpu(fpu)
.set_fpu(&fpu)
.map_err(|e| cpu::HypervisorCpuError::SetFloatingPointRegs(e.into()))
}